Transmission Main Backflow Prevention Project

The City of Lancaster is seeking a qualified contractor to design and construct a new valve vault with a check valve on an existing 30‑inch water transmission main at the South Water Treatment Plant. The scope includes excavation, installation of a valve vault, pipe supports, access hatch, all related appurtenances, and compliance with Ohio prevailing‑wage requirements. The project has an engineer’s cost estimate of $950,000 and requires a bid guaranty, performance bond, and various certifications (non‑collusion, equal‑employment, MBE/WBE participation). • Install a backflow‑prevention check valve and associated vault infrastructure. • Perform earthwork, pipe support installation, and site restoration. • Provide required bonds, insurance, and comply with all city, state, and federal regulations.